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Chapter 2 Review Game

Chapter 2 Review Game. September 24, 2012 Chemistry. Put in scientific notation: 66,000. Present your answers!. 6.6 x 10 4. Put in scientific notation: 0.009862. Present your answers!. 9.862 x 10 -3. Qualitative or Quantitative observation? You have eight toes. Present your answers!.

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Chapter 2 Review Game

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  1. Chapter 2 Review Game September 24, 2012 Chemistry

  2. Put in scientific notation:66,000 Present your answers! 6.6 x 104

  3. Put in scientific notation:0.009862 Present your answers! 9.862 x 10-3

  4. Qualitative or Quantitative observation?You have eight toes. Present your answers! quantitative

  5. Qualitative or Quantitative observation?Your toes are blue. Present your answers! qualitative

  6. Put in standard form:4.5 x 10-3 Present your answers! 0.0045

  7. Put in standard form:8,400,000 Present your answers! 8.4 x 106

  8. A testable statement that serves as a basis for making predictions and for carrying out further experiments is a __________. Present your answers! hypothesis

  9. A __________ is a broad generalization that explains a body of facts or phenomena. Present your answers! theory

  10. What is the SI base unit for length? Present your answers! meter

  11. What is the SI base unit for mass? Present your answers! kilogram

  12. What is the SI base unit for time? Present your answers! second

  13. What is the SI base unit for temperature? Present your answers! Kelvin

  14. What is the SI base unit for amount of a substance? Present your answers! mole

  15. The quantity of matter per unit volume is _____________. Present your answers! density

  16. m2 is a derived unit that measures __________. Present your answers! area

  17. m3 is a derived unit that measures __________. Present your answers! volume

  18. kg/m3 is a derived unit that measures __________. Present your answers! density

  19. _________ is a measure of Earth’s gravitational pull on matter. Present your answers! weight

  20. What is the formula for density? Present your answers! D=m/v

  21. ________ refers to the closeness of measurements to the correct or accepted value of the quantity measured. Present your answers! accuracy

  22. The density of a metal is 1.50 g/cm3. What is the mass of a solid piece of the metal if the volume of the piece is 2.70 cm3? Present your answers! 4.05 g

  23. A sample of a substance has a mass of 5.00 g and a volume of 96.5 cm3. The density of the substance is… Present your answers! 0.0518 g/cm3

  24. The density of a material is 3.5 g/cm3. What is the volume of a sample of the material with a mass of 0.50 g? Present your answers! 0.14 cm3

  25. The graph of two variables that are directly proportional to one another is a ________ . Present your answers! Straight line

  26. The graph of two variables that are indirectly proportional to one another is a _________. Present your answers! parabola

  27. When 5.4 x 1020 is multiplied by 9.7 x 10-4, the product is __________. Present your answers! 5.2 x 1017

  28. When 2.6 x 10-6 is divided by 5.6 x 10-9, the quotient equals _________. Present your answers! 4.6 x 102

  29. An experiment was designed to investigate the effect of caffeine on the heartbeat of water fleas. Two populations of water fleas were created. Both populations had water with the same mineral content, were fed identical amounts of bacteria as food, received the same amount of light, and had their temperature maintained at 20C. Every two hours, water fleas from both populations were selected and their heartbeats were monitored. The fleas of Population One had caffeine administered five minutes before their heartbeat was checked. The fleas of Population Two were given no caffeine. Present your answers!

  30. An experiment was designed to investigate the effect of caffeine on the heartbeat of water fleas. Two populations of water fleas were created. Both populations had water with the same mineral content, were fed identical amounts of bacteria as food, received the same amount of light, and had their temperature maintained at 20C. Every two hours, water fleas from both populations were selected and their heartbeats were monitored. The fleas of Population One had caffeine administered five minutes before their heartbeat was checked. The fleas of Population Two were given no caffeine.What is the independent variable? Present your answers! caffeine

  31. An experiment was designed to investigate the effect of caffeine on the heartbeat of water fleas. Two populations of water fleas were created. Both populations had water with the same mineral content, were fed identical amounts of bacteria as food, received the same amount of light, and had their temperature maintained at 20C. Every two hours, water fleas from both populations were selected and their heartbeats were monitored. The fleas of Population One had caffeine administered five minutes before their heartbeat was checked. The fleas of Population Two were given no caffeine.What is the dependent variable? Present your answers! heartbeat

  32. An experiment was designed to investigate the effect of caffeine on the heartbeat of water fleas. Two populations of water fleas were created. Both populations had water with the same mineral content, were fed identical amounts of bacteria as food, received the same amount of light, and had their temperature maintained at 20C. Every two hours, water fleas from both populations were selected and their heartbeats were monitored. The fleas of Population One had caffeine administered five minutes before their heartbeat was checked. The fleas of Population Two were given no caffeine.What is the control group? Present your answers! Population Two (no caffeine)

  33. An experiment was designed to investigate the effect of caffeine on the heartbeat of water fleas. Two populations of water fleas were created. Both populations had water with the same mineral content, were fed identical amounts of bacteria as food, received the same amount of light, and had their temperature maintained at 20C. Every two hours, water fleas from both populations were selected and their heartbeats were monitored. The fleas of Population One had caffeine administered five minutes before their heartbeat was checked. The fleas of Population Two were given no caffeine.What is the experimental group? Present your answers! Population One (got caffeine)

  34. An experiment was designed to investigate the effect of caffeine on the heartbeat of water fleas. Two populations of water fleas were created. Both populations had water with the same mineral content, were fed identical amounts of bacteria as food, received the same amount of light, and had their temperature maintained at 20C. Every two hours, water fleas from both populations were selected and their heartbeats were monitored. The fleas of Population One had caffeine administered five minutes before their heartbeat was checked. The fleas of Population Two were given no caffeine.What is one controlled variable in this experiment? Present your answers! Water temperature

  35. How many significant digits?0.0090 Present your answers! 2

  36. How many significant digits?150.00 Present your answers! 5

  37. How many significant digits?89,900 Present your answers! 3

  38. Add 1.54 and 3.008. Round the answer to the appropriate number of digits. Present your answers! 4.55

  39. Subtract: 8,000 – 245.4Round the answer to the appropriate number of digits. Present your answers! 7,755

  40. Multiply: 1,000 x 245.4Round the answer to the appropriate number of digits. Present your answers! 200,000

  41. Divide: 907.66 / 0.0027Round the answer to the appropriate number of digits. Present your answers! 340,000 or 3.4 x 105

  42. The End…remember to study dimensional analysis problems too!

  43. Put in scientific notation:66,000 Present your answers! 6.6 x 104

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